Learn ImplicitCAD's ExtOpenSCAD language with our tutorial! (If you already know OpenSCDAD, you may wish to look at the tutorial for openscad developers instead.)
Learn by example! Check out a bunch of cool examples of objects designed in ImplicitCAD. Then try making changes, all in your web browser!
Learn all the primitives with the ExtOpenSCAD API Reference! There's all sorts of useful tools for designing objects available!